Episodes of water deprivation enhance daily hypertonic NaCl intake in rats
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Data
2002-04-01
Autores
Pereira, D. T. B. [UNESP]
David, R. B. [UNESP]
Menani, José Vanderlei [UNESP]
Luca Junior, Laurival Antonio de [UNESP]
Título da Revista
ISSN da Revista
Título de Volume
Editor
Associação Brasileira de Divulgação Científica (ABRADIC)
Resumo
Water and 1.8% NaCl intake was recorded daily in adult male rats (N = 6) submitted to four water deprivations plus four sodium appetite tests, each at the end of each 7-day interval, or in controls (non-deprived, N = 6). Water deprivation was achieved by removing water and 1.8% NaCl for 24 h. Water was then offered for 2 h. At the end of this period, 1.8% NaCl was also offered in addition to water (sodium appetite test). Average daily 1.8% NaCl intake was enhanced from 5.2 ± 1.0 to 15.7 ± 2.5 ml from the first to the fifth week in the experimental group and was unchanged in the control group. Daily water intake was not altered in either group. Thus, repeated episodes of water deprivation enhance daily NaCl intake.
Descrição
Palavras-chave
Thirst, Salt appetite, Dehydration, Natriuresis
Como citar
Brazilian Journal of Medical and Biological Research. Associação Brasileira de Divulgação Científica, v. 35, n. 4, p. 465-468, 2002.